Abstract

Recently, advances in (photo-)electrochemical CO2 reduction have enabled record faradaic efficiencies for products containing at least two carbon atoms. However, comparatively little effort has been made to maximize the molar concentrations of the products that come out of the electrolyzer. In this presentation, I will talk about strategies and specific cell designs to optimize cathodic product concentrations, which may enable coupling the CO2 reduction cell to a downstream reactor that produces further reduced and more valuable products. Specifically, I will illustrate the concept with a system that enhances ethylene concentrations of an electrolyzer outlet stream.

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